Clarifier



0. M. NELSON.

vCLARIFIER'.

APPLICATION FILED Mun, 1919.

Patented Sept. 12, 1922.

Ill

ATTORNEYS Patented Sept. 12, 1922.

UNITED PATENT OFFICE.

OSCAR M. NELSON, OF NEW ORLEANS, LOUISIANA.-

CLARIFIER.

Application filed April 11,

T all whom it may concern: )3

Be it known that I, OsoAnjM. NELSON, a citizen of the United States, res iding at New Orleans, in .the parish of Orleans and State 5 of Louisiana, have invented new and useful Improvements in Clarifiers,f- 9f which the following is a specificationi It is the object of vthe invention, among other things, to provide a mechanism of simple structure, so designed and constructed that the heavier foreign substances in the juices or syrups will accumulate upon the bottom and be readily rem therefrom, and not interfere with the L inuous boiling operations, and means fpr supplying the required heat at a point sufficiently distant from said bottom to permit the boiling process to continue without agitating the precipitates on said bottom; tmfacilitate the upward movement ofv the boiling juices by a limited pressure thereon derived from the juices, and provide means for'insuring a circulation of the juices about the axis of the device as well. as in a verticaliplane.

To these and other ends lily-invention consists in the clarifier having (2' tain details of construction and combinations of parts as will be hereinafter describedlamd more particularly pointed out in th'egelaim.

Referring to the drawingSLin which like numerals of reference designate like parts in the several figures;

Figure 1, is a plan view of my improved clarifier; and

Figure 2, is a vertical section-thereof partly in side elevation.

In the practice of my invention I provide a pan 1 having a cylindrical wall 3 terminat ing in an outwardly flaring flange 2 at its top end and closed at its Iloyver end by a conical bottom formed by the walls 9 and 10, at the peak of which is a discharge pipe 17 suitably valved. The juices fare admitted into this pan through the intake pipe A and discharged therefrom throughithe exhaust pipe 6 or other convenient means." This exhaust pipe having a head 8;'Ythereon is attached by means of the connection 7, or other conventional means, to that portion of the 50 cylindrical wall 3 that is designated 4. Supported within the pan 1 is a hollow drum 12 aving top and bottom platesjll, which support the opposite ends of the tubes 13.

The outside diameter of this drum 12 is 56 of such relative size that the open space be athe pipe 22, I haveprovided a baffle plate 5 1919. Serial No. 289,462.

tween the outside thereof and the inside of the cylindrical wall 3 is of greater cross-sectional area than that of the combined crosssectional areas of all of the openings in the tubes 13. I

Steam is admitted to the drum 12 through the pipe;14'secured thereto by the collar 15, and exhausted therefrom through the pipe 22 secured by a flange 16 or other preferred means, elbow 26 and offset pipe 27 that ex tends through the wall 3 and supported thereat by the flange or collar 19. To prevent the steam passing directly through the drumin a straight line from the pipe 14: to

within the drum that deflects the steam radially and distributes it throughout the drum l2 and around all of the tubes 13.

If it is; desired thatthe juices travel in a circuitous path within the pan, this may be accomplished through the medium of two or more baffle plates 21, which may be inserted within the pan so that one end of each is substantially flush with the outer edge of the drum 12, and the opposite end substantially in contact with the inner face of the wall 3, as shown in Figure 1 wherein they are shown as being arranged parallel with each other. The drum 12 is supported by the baflie plates which project thereunder at one end. A different number and arrangement of plates may be adapted and operate equally as well as the two plates herein shown.

The-steam due to battle 5 effects more uniform heating of the tubes 13 and by the described arrangement of the baffles 21 and 21, the juices are initially caused to flow along the part of the drum adjacent to pipe A, then between the two baflies 21, where the juices encounter the hottest area of the drum, and finally the juices will flow along the outer side of the bafiie 21 adjacent to the pipe 6. The juices are thus brought into heating contact with the entire drum and the heat of the latter is imparted to the juices in an efficient and thorough manner so thatthe heat of the drum is utilized to the greatest possible extent. Otherwise stated, the juices must encounter not only, the hottest arts of the drum but all parts thereof in t eir travel from inlet A to outlet 6.

Such air as may accumulate in the drum 12 is permitted to escape therefrom through 110 similar means andv discharged through-an the vents 20, two of which areshown in the drawing, but a greater or less number may be used, if desired.

In practice, the pans l may. be arranged in series with the juices or syrups passing successively from one to the other, being ad'--.. mitted through an intake pipe A or other exhaust pipe 6 or similar means.

Inoperation, the'j'uices'inithe' pan adjacent'to'the drumare first subjected to the heat therein and consequently move upwardly through the'tubes 13 fromth'e underside of the drum to the top thereofin a pluralityof streams that'bubble ove'r and flow outwardly over'the top of saiddrum.

-Thevjuices then move downwardly through the open space between theoutside-bf the drum and the insideof the cylindrical wall 3. The boiling operationis thus continuous, the boiling jui'ces rising through -the='t'ubes 13' and then flowing-downwardly between the drum and wall 3'and again passing upward'ly through said t'ubesl3i The juices tl'lusrelieve the foreign substances therein.

The lighter of these foreignfsubstances rise to the surface of the juices and a'r'e'removed by skimming processes, while the heavier substances are precipitated to the bottom "of the pan Where they accumulate and "CQELI'G drawn 01f jthrough'th'e discharge pipe 17. The conical-bottom or the pan facilitates this action and as the distan'ce 'between it and theunderside of the drum 12 isso relati'vely gfrez'rt,- these: heavier substances having been once freed from the juices fall to the bottom ,ands do not travel upwardly with the boiling juices; asthere is a sufliclent volumeof juices passing above the sediment on the bottom of the pan to continue the operations,- without-disturbing or agitating it.

The operation of clarifying sugar juices in my improved c'levi-e e"results in the practical elimination of all} foreign'f substances, both light and heavy, without the use of chemicals si'ich as sulphur or limecommonly used heretofore-and-the same are-admitted and discharged adjacent to thetop of'the 9WVhat is'claimed='is:

In a'clarifier,-a panhaving an inletand an outlet atoppositesides th'ereof,ja""steam drum in thep'a'n' spaced from the walls there} of and vhaving a series of vertical pipes eXe t nding throu h the top and bottom thereof, an inlet and an outlet 1 for" the drum oppos'i't'ely disposed i and" arranged at" the center thereofl fia battle, between the 'inlet and outlet of the'fd rum spacedfrom the"inlet 'and'di'sposed adj ae'entthereto to efi'ect lateral movement ofthe' incoming steam against the'tubes' and toward-"thedrum periphery, vertically dlsposed ba'flies'one' of which extends fromia side? wall of the pan'and between the inlet thereof'and the center of'the pan and across the drunr 'and spa-t a from the opposite 'side wall of the *pan'anda second of which extends betWeenthe outlet offthe' pan the center of the pan and from said oppositefside walland across the drum .and sp'aced from the first-named side wall or the p'ani In test1 mony whereof l h fve hereunto I s t my hand in presence of two subscribing wit ness es. A"

OSCAR M',;NELSO N *WV-i'tness'es: f v I PERcY L. LUCK, 5 

